12 volume set contains of:
1. History of psychology / edited by Donald K. Freedheim
2. Research methods in psychology / edited by John A. Schinka, Wayne F. Velicer
3. Biological psychology / edited by Michela Gallagher, Randy J. Nelson
4. Experimental psychology / edited by Alice F. Healy, Robert W. Proctor
5. Personality and social psychology / edited by Theodore Millon, Melvin J. Lerner
6. Developmental psychology / edited by Richard M. Lerner, M. Ann Easterbrooks, Jayanthi Mistry
7. Educational psychology / edited by William M. Reynolds, Gloria E. Miller
8. Clinical psychology / edited by George Stricker, Thomas A. Widiger
9. Health psychology /edited by Arthur M. Nezu, Christine Maguth Nezu, Pamela A. Geller
10. Assessment psychology / edited by John R. Graham, Jack A. Naglieri
11. Forensic psychology /edited by Alan M. Goldstein
12. Industrial and organizational psychology / edited by Walter C. Borman, Daniel R. Ilgen, Richard J. Klimoski.
For more information (content of each volume) see :
http://eu.wiley.com/WileyCDA/WileyTitle/productCd-0471176699,descCd-tableOfContents.html 
